Frontiernet.net claims my MX records are invalid.

Wayne Hahn wayne at hamilton.net
Fri Jan 2 03:42:57 UTC 2004


Hi All,

I hope someone could take a moment and look at my dns. I am unable to email
to frontiernet.net or any of there domains. When I called and finally got a
hold of someone in there NOC after 10 days. They told me the reason they are
rejecting my mail is because I have invalid MX or A records. Here is a snip
of my DNS records if someone sees what the problem is please tell me because
I don't have a problem emailing anyone else. I know I have two a records for
208.6.238.6 but I don't think that should break my MX records. I also
noticed when I ran tcpdump when trouble shooting that I would get a (admin
prohibited filter) message after I sent a reply message to there DNS server
for the MX request message not sure if this is related but it seemed
strange.

$TTL 86400
;
@       IN      SOA     dns1.hamilton.net. hostmaster.hamilton.net. (
                        2003100109
                        7200
                        3600
                        604800
                        86400 )
;nameservers
                        IN      NS              dns1.hamilton.net.
                        IN      NS              dns2.hamilton.net.
;
;mailservers
;
                        IN      MX      10      smtp1.hamilton.net.
                        IN      MX      20      smtp2.hamilton.net.
;
;machines
;
localhost               IN      A               127.0.0.1
@                       IN      A               208.6.238.5
author                  IN      A               208.6.238.3
mail                    IN      A               208.6.238.4
                        IN      MX      10      smtp1.hamilton.net.
smtp1                   IN      A               208.6.238.14
www                     IN      A               208.6.238.5
dns3                    IN      A               208.6.238.2
dns1                    IN      A               208.6.238.3
gate                    IN      A               208.6.238.4
dns2                    IN      A               208.6.238.6
smtp2                   IN      A               208.6.238.6

-------------------------------------------------------------
20:44:57.733982 resolve02.roc.ny.frontiernet.net.32771 >
dns1.hamilton.net.domain: [udp sum ok]  7564 [1au] MX? hamilton.net. (41)
(DF) (ttl 39, id 0, len 69)
20:44:57.734102 dns1.hamilton.net.domain >
resolve02.roc.ny.frontiernet.net.32771:  7564*- 2/2/5 hamilton.net. MX
smtp2.hamilton.net. 20, hamilton.net. (187) (ttl 64, id 23920, len 215)
20:44:57.734473 i80.hamilton.net > dns1.hamilton.net: icmp: host
resolve02.roc.ny.frontiernet.net unreachable - admin prohibited filter (ttl
255, id 27540, len 56)





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